Subversion Repositories openrisc

package org.relaxng.datatype;

/**

 * An interface that must be implemented by caller to

 * provide context information that is necessary to

 * perform validation of some Datatypes.

 *

 * @author <a href="mailto:jjc@jclark.com">James Clark</a>

 * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>

 */

public interface ValidationContext {

        /**

         * Resolves a namespace prefix to the corresponding namespace URI.

         *

         * This method is used for validating the QName type, for example.

         *

         * <p>

         * If the prefix is "" (empty string), it indicates

         * an unprefixed value. The callee

         * should resolve it as for an unprefixed

         * element, rather than for an unprefixed attribute.

         *

         * <p>

         * If the prefix is "xml", then the callee must resolve

         * this prefix into "http://www.w3.org/XML/1998/namespace",

         * as defined in the XML Namespaces Recommendation.

         *

         * @return

         *              namespace URI of this prefix.

         *              If the specified prefix is not declared,

         *              the implementation must return null.

         */

        String resolveNamespacePrefix( String prefix );

        /**

         * Returns the base URI of the context.  The null string may be returned

         * if no base URI is known.

         */

        String getBaseUri();

        /**

         * Checks if an unparsed entity is declared with the

         * specified name.

         *

         * @return

         *  true

         *              if the DTD has an unparsed entity declaration for

         *              the specified name.

         *  false

         *              otherwise.

         */

        boolean isUnparsedEntity( String entityName );

        /**

         * Checks if a notation is declared with the

         * specified name.

         *

         * @return

         *  true

         *              if the DTD has a notation declaration for the specified name.

         *  false

         *              otherwise.

         */

        boolean isNotation( String notationName );

}